Not only can't a cortisone shot help or cure the pain in your Achilles tendon, it can make it much worse. There are a few areas that should never be injected with cortisone. The Achilles tendon is one of them.

There is an area of the Achilles tendon that has a reduced blood supply. This is the area that most commonly becomes inflamed or injured. Because of this reduced blood flow to the tendon, it can become weakened when injected with cortisone, even in very low doses. For that reason, we never will inject cortisone in or around the Achilles tendon.